Water-discharge attachment for deep-well packers.



G. P, HOVIS. WATER DISCHARGE ATTACHMENT FOR DEEP WELL PACKERS.

APPLICATION FILED DEG. 5, 1910. Y

Patent d July 11, 1911.

6EORGE F: HOV/S Witnmozo when COLUMBIA PLANOGRAPH CD., WASHINGTON. D4

UNITED STATES PATENT OFFICE GEORGE F. HOVIS, OF CLINTONVILLE,PENNSYLVANIA.

WATER-DISCHARGE ATTACHMENT FOR DEEP-WELL PACKERS.

To all whom it may concern:

Be it known that I, GEORGE F. HovIs, citizen of the United States,residing at Clintonville, in the county of Venango and State ofPennsylvania, have invented certain new and useful Improvements inTater- Discharge Attachments for DeepWVell Packers, of whichthefollowing is a specification.

The object of my invention is to provide an attachment for packers fordeep wells, whereby the packer may be relieved from the weight of thewater above it when the packer is to be pulled from the well.

My improved attachment may be adapted to be applied to many of thevarious forms of packers now upon the market, such, for instance, asthat shown in Letters Patent to D. V. Black, No. 439,233 of Oct. 28,1890, that to D. W. Black, No. 588,384 of Aug. 17, 1897, or that to B.Masseth, No. 439,166 of Oct. 28, 1890, and several others.

Referring to the drawings, Figure 1 shows one of the various forms ofpackers with myattachment applied thereto, a portion of the packer beingbroken away to expose the essential portion of my attachment to view.Fig. 2 shows my attachment in the water-discharging position. Figs. 3and 4 show modified forms of my attachment.

My attachment consists essentially of a waterdischarge pipe 1, insertedwithin and extending through the packer 2 and projecting below thebottom of the same for a short distance. The external diameter of pipe 1is somewhat less than the internal diameter of the packer-sleeve 3, sothat it may have a free longitudinal movement therein.

Approximate to the upper end of the discharge-pipe, ports 4 are formed,through which water may pass to the interior of pipe 1, and through thesame to the space below the packer, thereby relieving the weight uponthe packer. The upper end of the discharge-pipe 1 may be adapted for theattachment of any desired fitting, such as a tubing-coupling 5, as shownin Figs. 1 and 2, or a tubing and gas-escape pipefitting 6, as shown inFig. 3, or a casingcollar 7 as shown in Fig. 4. Between the lower faceof the coupling 5, 6 or 7, as the case may be, and the upper juxtaposedface of the packer, is interposed a packing-ring Specification ofLetters Patent.

Application filed December 5, 1910.

Patented July 11, 1911. Serial No. 595,726.

often very difficult, owing to the fact that there is no way ofrelieving the packer from the weight of the superimposed body of water,but with my improved attachment the discharge pipe 1 may be raised andthe water resting upon the packer is thereby permitted to flow downthrough the packer, thus relieving it of all weight. Upon the lower endof the discharge pipe 1 is affixed a collar 9, which, when saiddischarge pipe is raised, abuts against the lower end of the packer andsustains the weight thereof and carries said packer upward wit-h thetubing or casing as it is being withdrawn from the well. In cases,however, where the packer has remained undisturbed in the well for aconsiderable period of time, it may have become permanently set, andthus adheres so firmly to the wall of the well that it cannot beremoved, and in this event it becomes necessary to allow the packer toremain in the well, hence, some provision must be made for permittingthe withdrawal of the discharge pipe 1 from the packer. I make provisionfor such withdrawal in the following manner: In the lower face of thecollar 10 of the packer I form several notches 11 and in the upper faceof the collar 9 I form a corresponding number of lugs 12, adapted toenter and be engaged by said notches. Collar 9 is secured to pipe 1 by aleft-hand screw-thread. When it is found that the packer has becomepermanently set and stuck in the well, pipe 1 may be unscrewed fromcollar 9 by causing the inter-engagement of the collar 9 with the lowerend of the packer, as shown in Fig. 2, this prevents said collar fromturning and when said pipe 1 is turned, it unscrews from said collar,and may then be freely withdrawn from the packer. All of the threads bymeans of which the tubing or casing is secured together are right-handthreads which insures the unscrewing of the collar 9 from pipe 1, asabove stated.

I claim 1. The combination with a packer for deep wells, of a pipehaving ports in the upper end thereof, said pipe extending through andlongitudinally movable within the packer for the purpose set forth, atubing connection upon the upper end of said pipe, a packing ringinterposed between the opposing faces of said connection and saidpacker, a collar screw-threaded to the lower end of said pipe and meansfor causing the inter-engagement between said collar and the lower endof said packer for the purpose of effecting the removal of said collarfrom said pipe to permit the withdrawal of said pipe from said packer.

2. A waterdischarge attachment for packers for deep wells consisting, incombination with such packer, of a water-discharge pipe passing throughand longitudinally movable in said packer and having water-dischargeports therein arranged to be withdrawn from and positioned above the topof said packer for the purpose of permitting the downward flow of waterthrough said ports, a suitable pipe connection secured to the upper endof said pipe and adapted to seat upon the upper end of said packer, apacking ring interposed between the opposing faces of said connectionand said packer, a collar screw-threaded to the lower end of said pipe,and means for effecting a non-revoluble engagement between said collarand the lower end 01. said packer for the purpose of effecting theremoval of said collar from said pipe.

In testimony whereof I aflix my signature in presence of two witnesses.

GEORGE F. HOVIS. WVitnesses:

E. K. SMILEY, A. L. MYERS.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, D. C.

